Engine governor



T. B. FUNK AND C. M. EASON.

ENGINE GOVERNOR.

APPLICATION FILED JULY 3|, I920.

1,410,462, Patented Mar. 21, 1922.

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T. B. FUNK AND C. M. EASON.

ENGINE GOVERNOR.

APPLICATION FILED JULY 31.1920.

1,41 0,462. Patented Mar. 21, 1922.

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TRUMAN B. FUNK, OF MOLINE, ILLINGIS, AND CLARENCE M. EASON,

N131 JERSEY; SAID EASON ASSIGNOR T0 mm crate-a.

or HARRISON, sam rum.

ENGINE GOVRNOR.

Application filed July 31,

To all whom it may concern:

Be it known that we, TRUMAN B. FUNK and CLARENCE M. EASON, both citizensof the United States, residing at Moline, Rock Island County, Illinois,and at Harrison, Hudson County, New Jersey, respectively, have inventedcertain new and useful Improvements in Engine Governors, of which thefollowing is a specification.

This governor is intended primarily for use as a gas engine governor ontractors and is peculiarly fitted to conform to the requirements of thatuse, although it is not the intention that the invention be limited tothe use stated.-

The object and purpose of this invention is to construct a governorwhich will automatically regulate the speed of an engine regardless ofthe change in load. The present governor is so designed that it may beadjusted by the operator from his seat to govern the engine over a widerange of low speeds, so that flexibility of control is afforded andsubstantially constant speed ratios maintained within the selectedrange.

Further objects and uses of the invention will appear from a detaileddescription of the same which consists in the features of constructionand combinations of parts hereinafter described and claimed.

In the drawings:

Figure 1 is a sectional elevation of the governor with the casing cutaway;

Fig. 2 is a side elevation of the exterior of the casing;

Fig. 3 1s a top or plan view with the cap removed; and

Fig. 4 is an exterior elevation at right angles to that of Fig. 2.

The governor is housed within a cupshaped casing 5 closed by a cap 6 andprovided with a base 7 from which depends a tubular sleeve 8. Thehousing is mounted on some convenient portion of the engine casing andserves as an enclosure within which the working ortions of the governorare housed.

Journ'aled within the sleeve 8 is a verti-" a plurality of holes 28 forSpecification of Letters Patent. Patentqgdl 1W 2]} 11922 1920. Serialno. 400,399.

end with an inwardly extending finger 14 which pro ects into a slot' 15in the bifurcated head 16 of a post 17 which is slidably mounted w1th1nthe bore in the center of the tubular shaft 9 and rests upon the coiledspring 18 the arrangement belng such that, as the weights fly outthrough the effect of centr1fugal action, the inwardly projectingfingers 14 bearing upon the post 17 will cause the latter to bedepressed against the tension of the spring.

The supper end of the slotted head 16 has fixedly mounted thereon acollar 16 within which the head rotates, which collar is provided oneach side with a trunnion 19, the two trunnlons furnishing pivotalbearings for a pivot yoke 20 preferably formed of two sections of metalplate bowed to embrace the trunnion head, the sections having' theirends united to provide ears 21 and I that the'two bent arms will turn inthe same axial line.

The bent arm 23 has clamped thereon a lever arm 27 provided at its upperend with permitting variable adjustments. The protruding end of the bentarm 24 has clamped thereto a control lever 29 whose range of movementcan be regulated by means of a pair of adjusting screws 30 enteredthrough lugs 31 on the exterior of the housing and adapted to be held inadjusted position by lock nuts 32.

Rotary motion is imparted to the shaft 9 and governor carried thereby bymeans of a pinion 33 or the like keyed or otherwise secured upon thelower end of the bore shaft 9. This pinion may be put in train with anyappropriate rotating portion of the engine.

In use the employment of the two levers 27 and 29 will ensure a range ofadjustments and a flexibility of control such that the governor willoperate within varying speed limits in a manner now to be described. Bymoving the lever 27 to the right in Fig. 3, the bent arm 23 will berocked downwardly. This movement will depress the corresponding end ofthe yoke 20, thereby swinging the yoke upon the arm 24 as a fixed pivot,and serving to depress the spring supported post 16 by an amount equalto one-half the move- 20 movement to be imparted to the control arm,

ment of the depressed end-of the yoke. This depression of the postlowers the same away from contact with the inturned fingers 14 of thegovernor weig ts, so that with theadjustment indicate the speed of theengine must be increased to a predetermined degree before the governorweights will rise to such position as to again bring the fingers 14 incontact with the post. This adjustment permits the engine to acquire apredetermined speed before the governing action of the weights begins tooperate. Thereafter an increase of speed will have the effect of cansinga further depression of the spring operated post; and with the arm 27 inlocked relation and the control arm 29 free to move, the action of theweights will, of necessity, be centered upon the movable control arm, sothat a continued drawing down of the yoke will cause a greater or lessdegree of thereby operating the throttle to cut down the gas supply to adegree commensurate with the governing movement, with the result thatthe throttle action will be maintained in a state of equilibriumdepending upon the action of the governor weights.

The co-action between the adjusting lever 27 and the control lever 29 issuch that the adjusting lever can be moved to any desired position, orcan be permitted to remain in normal position, as shown inthe drawings,and this movement of the adjusting lever serves to determine the rangewithin which the governor action will "be limited. Thus when a slowspeed of adjustment is desired,

the spring post can be maintained in its uppermost position and incontact with the governor fingers while the engine is at rest.Thereafter, the initiatory movements of the governor weights will causea depression of the spring post and a consequent throttling effectwithin a low speed range. Similarly by moving the adjusting lever tovarying po sitions, the range of governing action can be adjusted forhigher speeds, so that the present device enables the operator to selectthe desired speed and adjust the governor to maintain such speed undervarying loads due to ground inequalities or other causes.

With the governor in its low speed adjustment, the range of action ofthe governor weights will be limited to an are within which the weightswill depart but a small degree from their normal vertical position,

and the lever arm effective for counteracting the tension of the spring18 will be relatively lon Thus a relatively slow engine speed willeffective to impart to the governor weights a sufiicient divergence fromvertical position to depress the spring and effect closing of thethrottle.

When the post is depressed to set the governor for operation in a higherspeed range, this adjusting movement will effect an ini-.

'tial com ressipn of the spring, and will also retract t e point ofcontact for the weights, so that'thereafter an initiatory movement ofthe weights will be necessary to effect operative contact of the weightsand the post. Thereafter the effective action of the weights at a higherrotary speed will begin, and the weights, operating within a range ofmovement more nearly approaching the horizontal, will operate on ashortened lever arm as against increased spring pressure so that ahigher speed range will be required to effect a further compression ofthe spring and a resultant movement of the post such as to effect theclosing of the throttle. Similarly for higher speed ranges the springpressure will be further increased and the lever length furtherdiminished to zero as theweights approach the horizontal position.

We claim:

1. In a governor, the combination of a slidably mounted stem, arotatable standard arranged laterally of the stem, a weight pivoted tothe standard and having a projecting member adapted to engage the stemwhen the weight is subjected to the action of centrifugal force, aspring bearing against the stem for resisting the action of centrifugalforce, single adjusting means for regulating the position of the stemwith respect to the contacting member on the weight and concurrentlyregulating the spring tension, and throttle controlling means adapted tobe actuated by the action of the governor weight, substantially asdescribed.

' 2.. In a governor, the combination of a rotating governor weight, aspring supported stem adapted to be contacted and moved by the governorweight when rotated, a yoke pivotally connected to the stem, anadjusting device connected to one end of the yoke for regulating theposition of the stem with respect to the governor, and a throttlecontrolling device connected to the other end of the p1voted yoke,substantially as described.

3. In a governor, the combination of a rotating'governor weight, a stemadapted to be contacted and moved by the governor weight when rotated, ayoke pivotally connected to the steni, an adjusting device connected toone end of the yoke for regulating arms one pivoted to each'end of thepivotal.

member and journaled in opposite relation to one another, an adjustingmember connected to oneiof the bent arms for adjusting the position ofthe stem with relation to the governor weight, and a throttlecontrolling member connected to the other bent arm for regulating thethrottle within the range of governing movements established by theadjusting member, substantially as described.

5. In a governor, the combination of a housing, a shaft rotatablymounted within the housing, a spring pressed stem slidably mountedthrough the axis of the shaft, a pair of governor weights pivotallycarried by the shaft and having their acting ends in co-acting relationwith the stem, a member pivotally mounted on the stem. bent arms, oneconnecting end each of the pivotal member, the bent arm beingrespectively journaled through the housing on diametrically oppositesides, an adjusting lever connected to the protruding end of one of thebent arms, and a throttle controlling lever connected to the protrudingend of the other bent arm, the adjusting lever serving to vary therelation between the stem and the governor weights to establish speedlimits within which the governor is effective to control the throttle,substantially as described.

6. In a governor, the combination of a governor weight rotatably mountedand pivoted to permit of a swinging movement under the action ofcentrifugal force. means under the control of the governor weight foroperating the throttle, means for exerting a pressure on said throttleoperating means counter to the pressure exerted by the weight whenrotated, and a single means for jointly regulating the application ofsaid counter pressure and for allowing the weight to ini tially movethrough a zone of regulated extent before it assumes a position in whichto operate the throttle controlling means, substantially as described.

TRUMAN B. FUNK. CLARENCE M. EASON.

